MAI COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN SERVICE GROUP(S): MICRO,MINI MFG: MICROPOLIS NACS TYPE(S): N032 MFG. MODEL(S): 1304 CATEGORY: DISK I/O DESC: 5.25" FIXED MEDIA *** TABLE OF CONTENTS AS OF 12/03/91 *** FIB 00001.General Information.........................................08/22/91 FIB 00002.Change to Top Assembly and Device Board Part Numbers........10/15/84 FIB 00003.Changes to Coverplate and Defect Map - DON'T REMOVE DEFECT S10/15/84 FIB 00004.Handling Caution when Drive is out of the System............01/21/85 FIB 00005.Sys 2000 Flaw Maps, DUTIL-Drive Formatting..................08/07/86 FIB 00006.Don't Format 1600 5 1/4" Disk Drives Under Release 4.5S ....08/22/86 FIB 00007.Allow thermal equalization before formatting................04/27/87 DISK I/O-MICROPOLIS-1304----------------------------Table Of Contents Pg01 of 01 FIB 00001 08/22/91 *** General Information *** The Micropolis model 1304 is a 5 1/4" fixed disk utilizing a servo head, linear positioner . It is used by Basic Four in the 1600 and 2000 Systems. FORMAT SIZE P/N HEADS SEC/TRACK CYL BLOCKS 43MB MM534020(1304) 6 17 830 84456 71MB MM534070(1325) 8 17 1024 138992 *** Available Documentation *** Basic Four 5 1/4" Winchester Disk Drive Basic Four # M8097 *** Available Training *** Included in BBIV basic and 2000/3000 courses at Frazer and Tustin *** Special Tools *** None required. *** Special Administrative Procedures *** None required. ORIGINATOR: J.WHALEN DISK I/O-MICROPOLIS-1304----------------------------FIB001 Pg001 FIB 00002 10/15/84 *** Change to Top Assembly and Device Board Part Numbers *** ORIGINAL DOCUMENT NAME: Mini Alert 303 SUBJECT: CHANGE TO TOP ASSEMBLY AND DEVICE BOARD PART NUMBERS PRODUCT: MICROPOLIS 5-1/4" RIGID DISK DRIVES ASSEMBLY AFFECTED: 900510 - Disk Drive 101242-01-4 - Device Board DESCRIPTION OF CHANGE: The Top Assembly numbers of the Micropolis 5-1/4" Rigid Disk Drives are to be changed to reflect the use of a new version of the Device Electronics printed circuit board assembly (PCBA). The new Device Electronics Board is part #101362-01-0. It replaces the older version part #101242-02-2. TOP ASSEMBLY NUMBER CHANGES: Top Assembly Numbers change as follows: Old Top Assembly New Top Assembly 900510-01-7 900510-03-3 Top Assembly Numbers appear on the identification label on the rear of the drive REASON FOR CHANGE: A. To improve manufacturing efficiency B. To improve drive read margins SCHEDULE: New Device Electronics PCBAs are being phased into production starting in September 1984. All Micropolis drives shipping after early November 1984 will incorporate the new PCBA. SYSTEM COMPATIBILITY: Drives with the new Device Electronics PCBA are fully compatible with older drives. Precompensation is not required when using the new version drive; however, if your system is using precompensation, the new Device Electronics PCBA will function appropriately and within specification. SPARE PARTS COMPATIBILITY: See Chart Below. _///////////////////////////_ Device Electronics Board Part Number _ _///////////////////////////_ _ _///////////////////////////_ 101242-01-4 _ 101362-01-0 _ _///////////////////////////_ _ _ _ _ _ _ _ Model Top Assembly Number _ _ _ _ _ _ _ _ _ _ _ _ 900510-01-7 _ Standard _ Full Form, Fit and _ _ _ Configuration _ Function _ _ _ As Originally _ Compatibility _ _ _ Shipped _ _ _ _ _ _ _ _ _ _ _ 900510-03-3 _ Use P/N 101362-01-0 _ Standard _ _ _ (new version board _ Configuration _ _ _ when possible) _ As Originally _ _ _ _ Shipped _ _ _ _ _ Model Top Assembly number 900510-01-7 is the drive with the Device Electronics DISK I/O-MICROPOLIS-1304----------------------------FIB002 Pg001 board 10132-01-4 (Old Style). Model Top Assembly number 900510-03-3 is the drive with the Device Electronics board 101362-01-0 (New Style). REPAIR POLICY: Drives returned to Micropolis for repair will be repaired and returned with the same type of board as when they were received. UPGRADE: A. The old version boards are not upgrade-able to the new version. B. It is not necessary to retrofit older drives. C. The old and new boards, old and new drives are fully compatible with each other. ORIGINATOR: J. Sanka DISK I/O-MICROPOLIS-1304----------------------------FIB002 Pg002 FIB 00003 10/15/84 *** Changes to Coverplate and Defect Map - DON'T REMOVE DEFECT STICKER *** ORIGINAL DOCUMENT NAME: Mini Alert 305 SUBJECT: CHANGE TO APPEARANCE OF HDA COVERPLATE AND DEFECT MAP PRODUCT: MICROPOLIS 5-1/4" RIGID DISK DRIVES Assembly Affected: 900525 900510 DESCRIPTION: A change has been made to the outward appearance of the cover plate of the Head Disk Assembly (HDA). Circular and annular stickers are being used on the cover in exposed positions and covered positions (under the defect map label). Those stickers under the defect map have the effect of causing the map finish to have several raised dimples. The circular stickers are approximately one-half inch in diameter and the one annular sticker has an outside diameter of approximately one inch. The stickers are part of the manufacturing procedure and form airtight seals at rivet and fastener points of the cover assembly. Since the STICKERS ARE SEALS related to the clean area of the drive (HDA), THEY SHOULD NOT BE REMOVED OR DISLODGED IN ANY WAY. The presence of stickers in no way affects the functioning of the product. Older drives which do not have the stickers have a cover assembly which was fabricated in a different manner such that the airtight seal at the rivets and fasteners is internal to the HDA and hence the stickers are not required. ORIGINATOR: J. Sanka DISK I/O-MICROPOLIS-1304----------------------------FIB003 Pg001 FIB 00004 01/21/85 *** Handling Caution when Drive is out of the System *** Original Document Name - Mini Alert 336 The mounting plate studs protrude thruough the shock mounts so that when the drive is placed on a flat surface the studs contact the flat surface and defeat the shock mounting. Under these circumstances it is imperative that all the Winchester Disk Drives be handled with extreme caution, Otherwise either the surface(s) or head(s) may be damaged. ORIGINATOR: J. Sanka DISK I/O-MICROPOLIS-1304----------------------------FIB004 Pg001 FIB 00005 08/07/86 *** Sys 2000 Flaw Maps, DUTIL-Drive Formatting *** Original Document Name - Worldwide Product Support Field Bulletin 228 The necessity for keeping and maintaining an up-to-date flaw map for the WDD can not be overemphasized. This holds especially true with possible adaptec firmware problems, where blown formats may necessitate reformatting of the disk unit(s). Some systems may have been shipped without accompanying flaw maps for the disk drives (prior to 3/86). If you have such a system and your unit does not now have a current flaw map, make one at your earliest convience. It is up to you to make sure it can be used as a viable tool. A good format and surface analysis is absolutely essential for reliable operation of the disk unit. The following is suggested - - every disk should have a flaw map. It should include the MFG. list as well as the flaw map printed by the dutil program. - never format a drive unless necessary. You can determine this by running the disk diagnostics, concentrating on the seek tests and using the read- only option. Run the read-only verify option with ecc off to detect possible soft errors. (The error log should also be looked at to determine weak areas of the disk). - If the disk's flaw map is inadvertantly lost, a printout of the defect list can still be obtained by selecting printer command option sp or option lp while running under dutil, and then displaying the defect list. - If the drive has been formatted before and the service rep wishes to format, always use option #5 (update defect map). use option #$4 (format, no surface analysis, defect mapping) only if update defect map fails. Below are listed the various dutil options available; recommended procedures for using them and a concise explanation of what they do. OPTION: 1. Format, surface analysis, defect mapping - use this option to first format a disk unit as if there were no defects, then perform a surface analysis with hardware ecc and retries disabled. After surface analysis, the MFG defects are entered by the user. The surface analysis results are merged with the MFG defects to form a more complete list. (Use this option when no defects are known to exist, or when the defect list is lost). NOTE: Option 1 is the only formatting option which will do 2 formats on the disk; the first without defects, the second with the defect list just created. 2. Format only, no defect mapping - this is the quick format. use this option when no defects are desired, or none are to be mapped out. 3. Surface analysis, report results - surface analysis specifically for use after formatting. This analysis will destroy data on the disk. Use this option after the last formatting option is complete to ensure no further soft errors exist. If defects are found by this option, rerun option #5 to add new defects to flaw map. 4. Format, no surface analysis, defect mapping - this format option is DISK I/O-MICROPOLIS-1304----------------------------FIB005 Pg001 intended to permit the user to enter known defects. This option does not use a previously saved defect list, it is intended primarily to manually enter defects. Option #3 should normally be run after this to ensure that no additional defects exist. 5. Updating defect map - this option is used to add a new defect to the existing defect list created by a previous format. Option #3 should have been run prior to this option. Error log information saved by the o/s is also an excellent source of intermittant bad spots. This option is the only one that uses the saved defect list. Use this option to reformat the disk unit with the old (original) defect list. To do this, simply carriage return when prompted for defects. If no saved defect list exists and no defects are entered, this option informs the user and no formatting will take place. 6. Change disk label - this option only changes the disk label in the superblock. The re-write operation will either take place immediately or during the next formatting process, at the user's option. If the choice is immediate, dutil will create a default label; if the choice is during formatting, the label can be user-defined. 7. Read maxtor defects from disk - only for maxtor disk units which have never been formatted under dutil. Defect list written on the drive by the mfg may be optionally re-written for later dutil use by the user. This eliminates the necessity to manually enter all defects. Do not select this option if the drive has been previously formatted by dutil. To check, use the read-only utilities menu and read defect list. To determine what to do and when, use the following parameters - CONDITION ACTION Maxtor drive never before formatted. option 7 Non-maxtor drive never before formatted and option 4, then option 3 defects are known. Non-maxtor drive never before formatted and option 1 no defects are expected or list is lost. Drive has been formatted before. option 5, then option 3 When defect list on the disk is corrupted. option 4 (enter all defects), then option 3, then option 5 if new defects are found Add a new defect list to an existing list. option 5 Reformat using existing list as a normal option 5 (enter C/R to maintenance procedure. "defect entry" prompt in order to use old list), then option 3, then option 5 if new defects are located To test format and data reliability option 1, read-only utilities The suggested number of surface analysis patterns for use is - as many as time will allow... the more patterns selected, the more thorough the analysis, and the more reliably the unit will operate. DISK I/O-MICROPOLIS-1304----------------------------FIB005 Pg002 ORIGINATOR: P. Koehler DISK I/O-MICROPOLIS-1304----------------------------FIB005 Pg003 FIB 00006 08/22/86 *** Don't Format 1600 5 1/4" Disk Drives Under Release 4.5S *** Under NO circumstances should Winchester disk units be formatted using the formatter utility supplied with the 4.5 "S" Operating System. If format is performed under this Operating System the procedure will most likely not complete properly or possibly ignore bad spots, resulting in a missing or incomplete bad spot list. Should you then try to use this disk after such a format, in the "as is" condition, you will see various operational errors relating to the fact that now the bad spots are not mapped out. The minimum Operating System level under which format should be performed is 4.5 "B". ORIGINATOR: Pete Koehler DISK I/O-MICROPOLIS-1304----------------------------FIB006 Pg001 FIB 00007 04/27/87 *** Allow thermal equalization before formatting *** When formatting or reformatting any Winchester Disk it is essential for temperature equalization to have been reached before the format is begun. Temperature equalization is the term used to describe the point in time when the disk platter, the read/write heads, and the air temperature within the disk drive housing reach their optimum operating temperature. Should a format procedure be performed on a "cold disk, one or more of the following symptoms may be seen: o hangs of the system causing a warm or cold boot to be performed. o Possible corrupted files o Failure to boot the system at random intervals. In the case of Winchester style disk drives, the following parameters should be met before any attempt to format the disk is begun: o If the drive has been turned off for periods in excess of one hour: Let drive run for a minimum of thirty minutes before attempting to format. o If the drive has been turned off for less than one hour: Let drive run for twenty minutes before formatting. o If drive has been turned off for less than one hour and room temperature is subject to a fluctuation of ten degrees centigrade or more per hour: Let drive run for thirty minutes before formatting. Following the conditions above will assure that the format will have been performed under the same ambient conditions found during normal operation of the system. ORIGINATOR: P. KOEHLER DISK I/O-MICROPOLIS-1304----------------------------FIB007 Pg001